Variation did begin to pick up once they started making indie games for consoles, but I was referring to games you could find on the shelves for an average home console. And I wasn't going from memory, I was going off something I read a while back.
https://techraptor.net/gaming/features/cost-of-gaming-since-1970s
Since as long as I've been a gamer, the average MSRP of a game has been quite steady despite the fact that the purchasing power of that price tag has completely collapsed.
An average Atari 2600 game cost $39.99 but that's closer to $170.70 in today's money. A game for the PS4 had a sticker price 50% higher, but the actual value of that money is nearly ⅓ as much.
If you have better data than the article I'd love to hear of it. I hated how they referred to typical MSRP as the "average" price when it's clearly the mode and not the mean.
My only point was that the price of these games has been at a certain level without regard for the drastic decline in the value of the dollar. Demand for games should be on the elastic side, so it's weird that (most) prices have been so steady.